1 #include "vtkAutoInit.h"
2 VTK_MODULE_INIT(vtkRenderingOpenGL2);
3 VTK_MODULE_INIT(vtkInteractionStyle);
4
5 #include <vtkSmartPointer.h>
6 #include <vtkRenderWindow.h>
7 #include <vtkRenderer.h>
8 #include <vtkRenderWindowInteractor.h>
9 #include <vtkInteractorStyleTrackballCamera.h>
10 #include <vtkCylinderSource.h>
11 #include <vtkPolyDataMapper.h>
12 #include <vtkActor.h>
13 #include <vtkProperty.h>
14
15 int main()
16 {
17 //定义一个vtkCylinderSource类型的对象cylinder
18 //vtkCylinderSource主要是生成一个中心在渲染场景原点的柱体，类型为（vtkPolyData)
19 vtkSmartPointer<vtkCylinderSource> cylinder =
20 vtkSmartPointer<vtkCylinderSource>::New();
21 cylinder->SetHeight( 3.0 );//设置柱体的高
22 cylinder->SetRadius( 1.0 );//设置柱体横截面半径
23 cylinder->SetResolution( 10 ); //设置柱体横截面的等边多边形的边数
24
25 //将输入的数据转换为几何图元（点、线、多边形）进行渲染
26 vtkSmartPointer<vtkPolyDataMapper> cylinderMapper =
27 vtkSmartPointer<vtkPolyDataMapper>::New();
28 cylinderMapper->SetInputConnection( cylinder->GetOutputPort() );
29
30 vtkSmartPointer<vtkActor> cylinderActor =
31 vtkSmartPointer<vtkActor>::New();
32 //设置生成几何图元的Mapper,即连接一个Actor到可视化管线的末端
33 cylinderActor->SetMapper( cylinderMapper );
34 cylinderActor->GetProperty()->SetColor(1.0, 0.0, 0.0);
35
36 vtkSmartPointer<vtkRenderer> renderer =
37 vtkSmartPointer<vtkRenderer>::New();
38 renderer->AddActor( cylinderActor );
39 renderer->SetBackground( 1.0, 1.0, 1.0 );
40
41 //将操作系统与VTK渲染引擎连接到一起
42 vtkSmartPointer<vtkRenderWindow> renWin =
43 vtkSmartPointer<vtkRenderWindow>::New();
44 renWin->AddRenderer( renderer );//加入vtkRenderer对象
45 renWin->SetSize( 640, 480 );//设置窗口大小，像素为单位
46 renWin->Render();//场景渲染
47 renWin->SetWindowName("RenderCylinder");
48
49 //提供平台独立的响应鼠标、键盘和时钟事件的交互机制
50 vtkSmartPointer<vtkRenderWindowInteractor> iren =
51 vtkSmartPointer<vtkRenderWindowInteractor>::New();
52 iren->SetRenderWindow(renWin);
53
54 //交互器样式的一种，可通过控制相机对物体作旋转、放大、缩小等操作
55 vtkSmartPointer<vtkInteractorStyleTrackballCamera> style =
56 vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();
57 iren->SetInteractorStyle(style);
58
59 iren->Initialize();
60 iren->Start();
61
62 return EXIT_SUCCESS;
63 }
